Re: [PATCH] speed up SATA

From: Jeff Garzik
Date: Sun Mar 28 2004 - 12:56:52 EST

Jamie Lokier wrote:
This is what I mean: turn off write cacheing, and performance on PATA
drops because of the serialisation and lost inter-command time.

With TCQ-on-write, you can turn off write cacheing and in theory
performance doesn't have to drop, is that right?

hmmm, that's a good point. I honestly don't know. Something to be tested, I suppose...

My premature guess would be that you would need a queue depth larger than 2 or 4 before performance starts to not-suck.


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